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Prev Professional Automotive Repair Technical Discussions for February 28, 2008
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Open Help Requests for Ford
Help Request Answers
1989 Ford F 800 7.0L No Start VIN: 1FDNF82K8K
I need a wiring diagram for the fuse box and the fuel pump circuit. Has new pump but blows fuse after 2/3 minutes. Shows constant draw of 25 amps. Had a 20 amp fuse in it. We don't have many of these in the fleet. Local Ford dealer can offer no help. Ford F...
1990 Ford F-150 Custom 5.8L Poor Idle Quality VIN: 1FTEX14H8L
Struggling with an idle issue on this F150. When started cold, the engine won't idle unless you keep your foot on the throttle, tries to idle about 200 rpm. After driving a couple of miles, begins to idle normally. Fuel pressure and ignition timing are within ... Trouble codes: 23 (TP/FIPL Sensor out of range), 26 (MAF/TOT Higher or lower than expected), 67 (PNP or Clutch switch circuit failure)
1994 Ford Ranger STX 3.0L Stall VIN: 1FTCR14U6R
6 months ago we tuned this up and has new plugs,dist cap,rotor,plug wires,fuel filter, pcv. We tried a new coolant sensor, mass air flow, new hall effect switch, and also a rebuilt computer. It will start and die within about 3 seconds. You can keep it running...
1996 Ford E-250 Econoline 5.8L Stall VIN: 1STHE24H7T
This van will start then dies afetr about 45-90 seconds, try to restart immediately and it will die immediately. If I wait for several minutes it will again run for 45-90 seonds then die again. I have verified that the fuel pump has pwr and runs and supplies 3...
1997 Ford Probe GT 2.5L MIL Lamp on VIN: 1ZVLT22B1V
this vehicle vehicle seems to be running lean O2 sensors are at o volts @ idle,voltage will rise with propane added.Inspected and smoke tested for vacuum leaks none found,fuel pressure right on specs.road tested and vehicle will run great.we checked archives f... Trouble codes: P1170, P1173, P0134, P0154
1998 Ford Taurus SE 3.0L Stall VIN: 1FAFP52U1W
hi there ford techs.had this one come in today,A bit of a head stratcher.Starts and immediatley dies.Pushed into shop and hookup spark tester.Great spark and now car acts like it wants to run.Disconnect spark tester and car starts and runs fine.Had disconnecte...
1999 Ford Ranger XL 2.5L valve train VIN: 1FTYR10C1X
This truck has me knocking my head off. came in due to a MIL on. found had P0301 misfire cylinder#1. scoped ignition and found normal good spark and normal firing voltages and times, nothing abnormal. engine running ok at idle very smooth and drives ok. but wh...
2000 Ford Taurus SE 3.0L MIL Lamp on VIN: 1FAFP58S3Y
first visit. customer arrived with c.e.l on no driveability sypmtoms. retrieved dtc's po174 and po171. lean codes. smoke test found bad pcv hose assembly. replaced. noticed fuel filter old, replace for maintenance reasons being it was related. cleaned mass air... Trouble codes: P0174, P0171
2001 Ford Windstar SEL 3.8L flashers VIN: 2FMDA53461
Need help with this one. I have this ford windstar, and the flasher stay on, with key engine on and driving. No trouble codes, replace combo switch and inst. cluster in the dash. Vehicle has never been in accident. The flasher go out only when the inst. cluste...
2002 Ford Explorer Limited 4.0L passenger window VIN: 1FMDU75E22
vehicle came in with passengers power window inoperative. diagnosed and replaced window motor/regulator assy. === after new motor installed window goes up slow half way then speeds up to close. customer states that before window quit, it operated at faster spe...
2002 Ford F-350 Super Duty XL 7.3L no crank VIN: 1FDR200000
No start. brought in from body shop , attempted theft left lock and cylinder damaged. Now the good stuff!!! key works normally but no start no crank. glow plug lite comes on and turns off like it should fuel pump turns on for a moment but won't crank. looked ...
2004 Ford F-150 FX4 5.4L Misfire VIN: 1FTPW14564
Any ford techs help!!! We got a 2004 ford truck F150 5.4L. Misses under small load at cruise speeds. P0300 code (random misfire). Did fuel pressure tests, appears ok. Scoped the enjectors, scoped primary ignition. Fuel trims +20 majority of the time on both ba... Trouble codes: P0300 (Random Misfire)
2004 Ford F-150 FX4 5.4L Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, allright side misfir VIN: 1FTPX14534
all right side of eng. is dead,has dead cyl.check camsensor & eng.misfire check sensor ok.replace spark plugs check ign.coils ok.check injectors ok. removed valve cover on right side check spring on cam sproket check timing chain & guides are ok.did ... Trouble codes: P0300
2006 Ford E-350 Super Duty XLT 5.4L cruise control VIN: 1FBNE31L76
This is an odd problem,..the fuse for the brake pressure switch will blow sometimes when just turning the key on,..or just as you get rolling down the highway,..thus rendering the cruise control in-op. Repalced the brake pressure switch with no change. Now,.if...
2005 Lincoln LS Luxury 3.0L parking brake VIN: 1LNHM86S25
Hello all, I have this 2005 Lincoln LS that while driving the parking brake light will illuminate and the bell rings, when the light turns off and the bell stops the sevice parking brake light will illuminate. I can not find any information in alldata pertaini...

Fixes & Summaries for Ford
Fix/Summary Answers
1985 Ford Bronco Custom 5.8L Excessive Emissions VIN: 1FMEU15G7F
Thanks to all that have replied. Jim [...] hit the nail on the head. The high voltage on the O2 circuit was due to a disconnected ground wire that serves as the ground for the O2. I found and checked three of the grounds to the PCM but missed this on. I alw...
1995 Ford Ranger XL 2.3L Fuel Gauge VIN: 1FTCR10A35
Thanks for everyone's help. We've tried all your suggestions and also tried replacing the sending unit and 3 different speedo head units - still not working. The customer has decided that he doesn't really care if it's working so he has picked his vehicle up...
1998 Ford Ranger Splash 4.0L MIL Lamp on VIN: 1FTZR15X8W
lower intake manifold gasket was leaking , replaced it and vehicle is fine , thanks for all the replies and input Trouble codes: P0171, P0174.
2000 Ford Taurus SE 3.0L transmission light flashing VIN: 1FAFP5321Y
thanks to all it seem my worst fears are realized pull it rebuild it jasper is my next call
2001 Ford Taurus SE 3.0L No Power VIN: 1FAFP53271
Ok guys, sorry to take so long to close this post. I did check the MAF, and that was as clean as it could have been. I did a little more testing and found the fuel pump was the culprit on this car. The customer declined the work though, due to a lack of fun... Trouble codes: P0171, P0302, P0303, P0304.
2002 Ford F-350 Super Duty XL 5.4L Instrument Cluster VIN: 1FDWF36L33
thank you to all that replied... it was the overdrive switch that was shorting on the collumn... i am considering this one fixed... it still amazes me that it took out the cluster and the fuse block before i could find it... thanks again iatn for all of your h...
2002 Ford Windstar LX 3.8L MIL Lamp on VIN: 2FMZA50442
Replaced the intake manifold with new updated bolts. Thanks for everyones help. IATN came thru again. Trouble codes: P0174, P0171.
2004 Ford F-550 Super Duty Lariat 6.0L tow/haul light flashing VIN: 1FDAF57P64
Sorry for the late posting:I forgot to mention that I also had a p0791 initially(intermediate shaft speed sensor code because it did not reset right away). Roger from Michigan was right about bad info from scanner. I rechecked w/my other genysis w/the later ...
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